View Code of Problem 56

#include<stdio.h>
#include<math.h>
int main()
{
	int h1,h2,h;
	int m1,m2,m;
	int s1,s2,s;
	scanf("%d:%d:%d",&h1,&m1,&s1);
	scanf("%d:%d:%d",&h2,&m2,&s2);
	int se1=h1*3600+m1*60+s1;
	int se2=h2*3600+m2*60+s2;
	int c=fabs(se1-se2);
	h=c/3600;
	m=c%3600/60;
	s=c%3600%60;
	printf("%d:%02d:%02d",h,m,s);
	return 0;
}